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by KellDann
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Examiner Chan S. Park

Potentially inactive Last observed office action: February 2026 (4 months ago).

Examiner Chan S. Park appears to be very easy relative to their art unit, group, tech center, and USPTO peers. Their lifetime grant ratio is 65.4%, they average 1.46 office actions per granted patent, and their rejection profile is dominated by ยง103.

Difficulty vs AU Very Easy
Difficulty vs Group Very Easy
Difficulty vs TC Very Easy
Difficulty vs USPTO Very Easy
Average OA / Grant 1.46
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Examiner Details

Observed Examiner Years
19 years (2008-2026)
Tech Center
2600 - Communications
Group
2620 - Selective Visual Display Systems

Metrics

Applications Evaluated
127
Granted Applications
83
Non-Granted Applications
44
Avg OA / Grant
1.46
Last OA Observed
February 2026 (4 months ago)
Art Units Seen
2624 , 2625 , 2669
Work Groups Seen
2620 - Selective Visual Display Systems
2660 - Image Analysis and Pattern Recognition

Context Comparison

Scope Examiners Lifetime Grant Ratio Avg OA / Grant
This Examiner 1 65.4% 1.46
Art Unit 35 55.2% 2.08
Group 280 55.8% 1.99
Tech Center 1,729 59.3% 1.88
USPTO 16,116 54.8% 1.98

Grant Timeline

0.0% 25.0% 50.0% 75.0% 100.0% 2008 2009 2010 2011 2013 2014 2017 2020 2025 2026
Shaded region marks the last two observed years, where grant outcomes may lag due to recency.
Year Applications Granted Grant Rate
No observed data before 2008; examiner may not yet have been active in the available dataset.
2008 28 20 71.4%
2009 32 24 75.0%
2010 23 19 82.6%
2011 25 19 76.0%
No observed data for 2012.
2013 6 0 0.0%
2014 1 0 0.0%
No observed data for 2015-2016.
2017 2 0 0.0%
No observed data for 2018-2019.
2020 1 0 0.0%
No observed data for 2021-2024.
2025 7 1 14.3%
2026 2 0 0.0%

83 family-cache-validated grants; 0 OA-only grant signals.

Rejection Timeline

OA # Office Actions § 101 Percentage § 102 Percentage § 103 Percentage § 112 Percentage
1 122 1.6% 18.0% 71.3% 5.7%
2 47 0.0% 12.8% 78.7% 8.5%
3 14 0.0% 0.0% 92.9% 7.1%
4 7 0.0% 14.3% 71.4% 0.0%
5 2 0.0% 0.0% 100.0% 0.0%
6 2 50.0% 0.0% 50.0% 0.0%

§ 101 Yearly Trend

2014: Alice
2019: PEG
2024: AI Examples
2025: Aug. Memo
4.2%
2008
0.0%
2009
0.0%
2010
0.0%
2011
0.0%
2012
0.0%
2013
0.0%
2014
0.0%
2017
0.0%
2020
12.5%
2025
0.0%
2026

Each bar shows the share of this examiner's observed office actions in that year that included a § 101 rejection.